The foundation of knowing God's will is not a mystical experience, a sign in the sky, or a feeling in the heart — it is trust in the Lord with all thine heart. Proverbs 3:5-6 gives the clearest roadmap for divine guidance in all of Scripture: trust completely, lean not upon your own understanding, acknowledge Him in all your ways, and He shall direct thy paths. The promise is unconditional for those who meet the conditions of wholehearted trust and submission.
Many believers agonize over God's will as though it were a hidden treasure buried in an unmarked location. But the vast majority of God's will is plainly revealed in His Word. He has told us to abstain from sin, to love one another, to share the gospel, to pray, to assemble with other believers, to work diligently, to care for our families, and to walk in holiness. Before seeking God's specific direction for a particular decision, we must first be faithfully obeying what He has already clearly commanded.
The believer who walks in daily obedience to Scripture will find that God's specific guidance for individual decisions becomes remarkably clear. It is the obedient heart that hears the Shepherd's voice. When we lean upon our own understanding — our logic, our desires, our worldly calculations — we become deaf to divine direction. But when we trust the Lord above our own reasoning, He faithfully makes the path straight before us.